1. cabin fever
2. dunderhead (d under head)
3. keep in touch
4. blood and thunder (blood and th under)
5. cover charge (c over charge)
6. diplomatic
7. final frontier (f in al fr on tier)
8. discontent
9. wonders never cease
10. furlough ORloafer (fur low OR low fur)
11. ducks and drakes
12. upside down cake